package com.neu.gulimall.order.web;

import com.neu.common.exception.NoStockException;
import com.neu.gulimall.order.entity.OrderEntity;
import com.neu.gulimall.order.service.OrderService;
import com.neu.gulimall.order.vo.OrderConfirmVo;
import com.neu.gulimall.order.vo.OrderSubmitResponseVo;
import com.neu.gulimall.order.vo.OrderSubmitVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.List;
import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    private OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model){

        OrderConfirmVo confirmVo = null;
        try {
            confirmVo = orderService.confirmOrder();
        } catch (ExecutionException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        model.addAttribute("orderConfirmData",confirmVo);

        // 展示订单确认的数据
        return "confirm";
    }

    /**
     * 提交订单
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes attributes){

        try {
            OrderSubmitResponseVo responseVo = orderService.submitOrder(vo);
            if (responseVo.getCode() == 0){
                // 下单成功来到支付选择页
                model.addAttribute("submitOrderResp",responseVo);

                return "pay";
            }else {
                String msg = "下单失败";
                switch (responseVo.getCode()) {
                    case 1: msg += "令牌订单信息过期，请刷新再次提交"; break;
                    case 2: msg += "订单商品价格发生变化，请确认后再次提交"; break;
                    case 3: msg += "库存锁定失败，商品库存不足"; break;
                }
                attributes.addFlashAttribute("msg",msg);
                // 下单失败回到订单确认页，重新确认订单信息
                return "redirect:http://order.gulimall.com:8081/toTrade";
            }
        } catch (Exception e) {
            e.printStackTrace();
            if (e instanceof NoStockException) {
                String message = ((NoStockException)e).getMessage();
                attributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://order.gulimall.com:8081/toTrade";
        }
    }

    @GetMapping("/memberOrder.html")
    public String memberOrderPage(Model model){

        // 订单支付成功之后，页面自动跳转到这里， 可以获取到支付宝给我们传来的所有请求数据并携带有签名
        // 我们可以验证签名，如果正确，就去数据库中修改订单状态

        List<OrderEntity> orderEntities = orderService.queryPageWithItem();
        model.addAttribute("orderEntities",orderEntities);

        return "list";
    }

}
